بررسي اثر تيمارهاي پيش رويشي بر جوانه زني بذر و رشد گياهچه هاي درمنه دشتي (Artemisia sieberi Boiss)

Effect of Different Treatments on Improvement of Seed Germination and Seedlings Initial Growth Characteristics in

This study was performed to test the effects of ascorbic acid, gibberllic acid and salicylic acid effects on germination and seedling growth properties of A. sieberi. For this purpose a factorial completely randomized design including three concentrations of salicylic acid (100, 200 and 300 mg/1), three levels of gibberllic acid (125, 259 and 500 ppm) and three levels of ascorbic acid (100, 200 and 300 mg/1) with four replications was conducted. The properties of germination percentage, germination speed, radicle length, plumule length, seedling length and seed vigor were evaluated under different treatments effect. The results of ANOVA showed that salicylic acid with 200 mg/1 has the highest effect on germination percentage while initial growth characteristics were affected mostly under gibberllic acid application compared to other treatments. Totally, using salicylic acid and gibberllic acid with together could be resulted in suitable results in terms of A. sieberi germination and initial growth properties.